THE NEW STANDARD FOR DISCREET CARRYA folding single-shot .22 caliber pistol that's no bigger than a stack of credit cards. At .5 inches thin and weighing less than 7 ounces LifeCardA(R) will be the last gun you'll leave behind. Discreet shape - sleek no-snag design Size of a credit card when folded Full-size handle for easy use when unfolded Completely ambidextrous Storage in handle for 3 extra rounds Built-in safety features Caliber - .22WMR / .22LR Height Closed - 2.125" Thickness Closed - 0.5" Weight - 7 oz. Materials - Aluminum / Steel / Polymer Finish - Corrosion Resistant Safety - Will not fire when closed